Exclusively for RadioShack, Bob Parks created a new project that’s sure to please at the lake or poolside this summer. Using the power of Arduino and sonar, the Sonar Beverage Barge is a beverage delivery boat that that motors to people floating in a pool or lake to offer them a cool refreshment. The twist… the beverage barge will only work if you clap a password in the correct sequence. Otherwise, the boat zooms away to find another customer. Download instructions here: http://www.radioshack.com/graphics/uc/rsk/Support/ProductManuals/RSDIY_SonarBeverageBargeInstructions.pdf